html,body,div,ul,ol,li,input,button,dl,dd,dt,a,p,span,em,img,i,h1,h2,h3,h4,h5,h6 {
	margin: 0;
	padding: 0;
	list-style: none;
	font-weight: normal;
	font-style: normal;
	box-sizing: border-box;
}
input,button,textarea {/*去除input默认样式*/
	-webkit-appearance:none;
	appearance:none; 
	outline: none;
	border: none;
	box-sizing: border-box;
}
textarea {
	resize:none;
}
html {
	font-size:20px;
	-webkit-text-size-adjust: none;
	font-family:"";
}
input::-webkit-input-placeholder,textarea::-webkit-input-placeholder {
	color:#999;
}
a {
	text-decoration: none;
}
.fl {float: left;}
.fr{float: right;}
.clearfix:after { clear: both; display: block; visibility: hidden; height: 0; line-height: 0; content: ""; }
.goback {width: 2.75rem !important;}
.po_re {position: relative;}
.po_ab {position: absolute;}
/*ios调整*/
/*#ios_show {height: 20px; border: none; display: none; background-color: #ffffff; position: fixed; width: 100%; top: 0; z-index: 2; }
#ios_show.ios_show  {display: block; }*/
/*禁用长按选中文本功能*/
/**{-webkit-touch-callout:none;
	-webkit-user-select:none;
	-khtml-user-select:none;
	-moz-user-select:none;
	-ms-user-select:none;
	user-select:none;}*/